I provided the best information and then let the customer determine how they can monitor the system with the LB. I agree that both Mid-Tier and App Servers have issues with finding if the system is truly available. I know that the files arerror and armonitor can assist with this.
-----Original Message----- From: LJ LongWing <lj.longw...@gmail.com> To: arslist <arslist@ARSLIST.ORG> Sent: Fri, Dec 10, 2010 11:12 am Subject: Re: Load Balancers and how? ** Roger, What method did they use to determine it was started/running? I personally have found ‘other teams’ don’t usually have a concept of what ‘functional’ means in a remedy world. I don’t consider the fact that arserver.exe is in memory an indicator that my server is functional…I’ve had TOO many situations where it was in memory, but you couldn’t log onto it. From: Action Request System discussion list(ARSList) [mailto:arsl...@arslist.org] On Behalf Of Roger Justice Sent: Friday, December 10, 2010 9:00 AM To: arslist@ARSLIST.ORG Subject: Re: Load Balancers and how? ** I was able to have the group that configured the load balancer determine if the Remedy Service was started/running. -----Original Message----- From: LJ LongWing <lj.longw...@gmail.com> To: arslist <arslist@ARSLIST.ORG> Sent: Fri, Dec 10, 2010 10:51 am Subject: Load Balancers and how? ** Ok….I’m going down a road that I KNOW some of you have travelled before, I need your travel tips. We are setting up a server group on 7.5 Windows and we are putting a load balancer in front of it. How do you all tell if a node is up? There are 4 types of probes that I’m being told are available… PING HTTP TCP Script Ping - Obviously doesn’t tell you anything other than the host OS is up HTTP - Won’t work for telling if a remedy service is up TCP – My instincts are telling me that this one simply does something similar to a telnet to a given port, if the port allows you ‘in’, then the service is considered up. I don’t consider this one viable because it doesn’t ‘test’ much and I expect that my remedy server could respond to the port request without actually being functional Script – This one is the most promising in my mind, but I know nothing about the scripting language of TCL. How does the rest of the remedy world ‘verify’ that their remedy instance is online so that their load balancer can know to route traffic to it or not. I just this week finished a java servlet that allows the mid tier load balancer to know if an individual node is working properly, but the same can’t be said yet for Remedy….any and all help is appreciated _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ _attend WWRUG11 www.wwrug.com ARSlist: "Where the Answers Are"_ _______________________________________________________________________________ UNSUBSCRIBE or access ARSlist Archives at www.arslist.org attend wwrug11 www.wwrug.com ARSList: "Where the Answers Are"
